灌溉方式对冬小麦水分利用效率及土壤中硝态氮积累的影响  

Effects of Irrigation Methods on Water Use Efficiency of Winter Wheat and NO_3^--N Accumulation in Soil

作　　者：许亮亮[1] 贺明荣[1] 黄传华[1] 邱牧[1] 门洪文[1] 曹倩[1] 王成雨[1] 

机构地区：[1]山东农业大学农学院/作物生物学国家重点实验室,山东泰安271018

出　　处：《山东农业科学》2009年第8期30-33,共4页Shandong Agricultural Sciences

基　　金：黄淮东部小麦玉米两熟丰产高效技术集成研究与示范(2006BAD02A09)

摘　　要：以强筋小麦品种济麦20为供试材料,研究了不同灌溉方式对小麦产量、水分利用效率及土壤中硝态氮积累的影响。结果表明,灌2次水条件下,传统灌溉处理的产量显著高于隔畦交替灌溉处理,但与交替灌溉3次水的处理无显著差异。交替灌溉处理的群体水分利用效率和灌溉水生产效率均显著高于相同灌溉次数的传统灌溉处理,且显著减少硝态氮在深层土壤80~200 cm的积累。Taking strong - gluten wheat Jimai 20 as test materials, the effeets of different irrigation methods on wheat yield, water use efficiency and soil NO3^- -N accumulation were investigated under different irrigation frequeney （0,1,2,3） and different irrigation methods （the dry -wet alternate irrigation and the traditional irrigation） in the whole growth period. The results showed that the grain yield of the treatment W2 under the traditional irrigation was obviously higher than that of the treatment W2 under the dry - wet alternate irrigation, but there was no significant difference between the treatment W2 of the traditional irrigation and the treatment W3 of the dry - wet ahernate irrigation. The water use efficiency and irrigation productivity under alternate irrigation were significantly higher than those of the corresponding treatments under traditional irrigation, and the NO3^- -N accumulation in 80 -200 cm soil layer was significantly reduced.

关 键 词：灌溉方式 冬小麦 水分利用效率 硝态氮 

分 类 号：S512.110.71[农业科学—作物学]